Thread network technology - 05 What is CoAP (theoretical part)?

Thread is a network technology for wireless networks based on IPv6. It is ideally suited for home automation, Industry 4.0 and wireless sensor-actuator networks. In this video, we learn the theory about the application protocol CoAP (Constrained Application Protocol). In the next video, we will also program a practical CoAP example with OpenThread and the developer kit nRF52840.


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CoAP specification (RFC7252)
https://datatracker.ietf.org/doc/html...


00:00 Indroduction
00:35 Disadvantages from UDP, TCP and HTTP for IoT devices
01:59 Overview CoAP
02:36 Thread layers and CoAP embedding
03:07 Client/server examples
04:56 Cloud communication
06:18 CoAP message types
06:47 CoAP frame structure
08:30 CoAP response/request codes
10:04 CoAP options (additional parameters)
10:31 CoAP option numbers (RFC7252)
10:43 Capture CoAP package with Wireshark
11:58 Outlook